:root { --bg:#0b0f14; --panel:#101824; --ink:#e7eef7; --muted:#9fb0c5; --stroke:#1e2a3a; }
* { box-sizing: border-box; }
body {
  margin: 0; font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 20% 0%, #122035, var(--bg));
  color: var(--ink);
  display: grid; place-items: center;
  min-height: 100vh;
}
.app {
  width: min(1100px, 96vw);
  background: rgba(16,24,36,.78);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0,0,0,.45);
  backdrop-filter: blur(8px);
}

/* BRAND BAR */
.brandbar{
  display:grid;
  grid-template-columns: 1fr auto 1fr;
  align-items:center;
  gap: 10px;
  padding: 10px 12px;
  border-bottom: 1px solid rgba(255,255,255,.06);
  background: rgba(0,0,0,.18);
}
.brandlink{
  display:flex; align-items:center;
}
.brandlink:first-child{ justify-content:flex-start; }
.brandlink:last-child{ justify-content:flex-end; }
.brandbar img{
  height: 44px;
  width: auto;
  filter: drop-shadow(0 10px 18px rgba(0,0,0,.35));
}
.brandcenter{
  display:flex; justify-content:center; align-items:center;
}
.brandcenter img{ height: 64px; }

header {
  padding: 14px 16px;
  display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
header .title { font-weight: 650; letter-spacing:.2px; }
header .hint { color: var(--muted); font-size: 12px; }

.timeline { padding: 10px 12px 10px 12px; border-bottom: 1px solid rgba(255,255,255,.06); }
.lane {
  background: rgba(8,12,18,.65);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 14px;
  padding: 10px 12px 12px 12px;
  position: relative;
  overflow: hidden;
}
.laneTop {
  display:flex; align-items:center; justify-content:space-between;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 12px;
}
.blocks {
  height: 44px;
  border-radius: 10px;
  background: linear-gradient(90deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  position: relative;
  overflow: hidden;
  margin-bottom: 10px;
}
.ticks{
  position:absolute;
  inset: 0;
  pointer-events:none;
}
.tick{
  position:absolute;
  top:0; bottom:0;
  width:1px;
  background: rgba(255,255,255,.12);
}
.tick.major{
  background: rgba(255,255,255,.22);
  width: 2px;
}
.tickLabel{
  position:absolute;
  top: 2px;
  transform: translateX(4px);
  font-size: 10px;
  color: rgba(255,255,255,.45);
}
.playhead {
  position:absolute; top:0; bottom:0; width:2px;
  background: rgba(255,255,255,.65);
  transform: translateX(0);
  pointer-events:none;
  box-shadow: 0 0 14px rgba(255,255,255,.35);
}
.loopBadge {
  position:absolute; left:10px; top:10px;
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(0,0,0,.35);
  border: 1px solid rgba(255,255,255,.08);
  font-size: 12px;
  color: var(--ink);
}

.tracksHeader{
  display:flex; align-items:center; justify-content:space-between;
  padding: 6px 2px 8px 2px;
}
.tracksTitle{ font-weight: 650; color: rgba(255,255,255,.85); }
.tracksActions{ display:flex; gap:8px; align-items:center; }

.tracks{
  display:grid;
  gap:8px;
}
.trackRow{
  display:grid;
  grid-template-columns: 1.2fr 1.1fr 1.1fr 1fr;
  gap:8px;
  align-items:center;
  padding: 10px 10px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.06);
  background: rgba(255,255,255,.04);
}
.trackName{
  display:flex; align-items:center; gap:10px;
}
.dot{
  width: 10px; height: 10px; border-radius: 50%;
  background: rgba(255,255,255,.55);
  box-shadow: 0 0 12px rgba(255,255,255,.15);
}
.trackMeta{
  color: var(--muted);
  font-size: 12px;
}
.trackBtns{
  display:flex; gap:8px; justify-content:flex-end; align-items:center; flex-wrap:wrap;
}
.trackCtl{
  display:flex; gap:8px; align-items:center; justify-content:flex-start; flex-wrap:wrap;
}
.trackCtl select, .trackCtl input[type="range"]{
  width: 100%;
  max-width: 260px;
}
.smallLabel{ font-size: 12px; color: var(--muted); }

.controls {
  padding: 10px 12px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr 1fr 1fr;
  gap: 10px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.ctl {
  background: rgba(8,12,18,.55);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 14px;
  padding: 10px 12px;
  display: grid;
  gap: 6px;
}
.ctl label { font-size: 12px; color: var(--muted); }
select, input[type="number"], input[type="range"] {
  width: 100%;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.08);
  color: var(--ink);
  border-radius: 10px;
  padding: 8px 10px;
  outline: none;
}
input[type="range"] { padding: 10px 0; }
.transport { display:flex; gap:10px; align-items: center; flex-wrap:wrap; }

.btn {
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.06);
  color: var(--ink);
  border-radius: 14px;
  padding: 10px 12px;
  cursor: pointer;
  user-select:none;
  transition: transform .08s ease, background .18s ease;
  font-weight: 600;
  white-space: nowrap;
}
.btn.small{ padding: 8px 10px; border-radius: 12px; font-weight: 650; }
.btn:active { transform: translateY(1px); }
.btn.primary { background: rgba(52, 211, 153, .18); border-color: rgba(52,211,153,.35); }
.btn.danger { background: rgba(239, 68, 68, .16); border-color: rgba(239,68,68,.35); }
.btn.on { outline: 2px solid rgba(255,255,255,.22); }
.btn.arm.on { background: rgba(52,211,153,.16); border-color: rgba(52,211,153,.35); }
.btn.mute.on{ background: rgba(245,158,11,.16); border-color: rgba(245,158,11,.35); }
.btn.clear{ background: rgba(255,255,255,.06); }

.padsWrap { padding: 12px; display: grid; gap: 10px; }
.pads { display:grid; grid-template-columns: repeat(8, 1fr); gap: 10px; }
.pad {
  height: 96px;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.06);
  display:grid;
  align-content: center;
  justify-items: center;
  gap: 6px;
  cursor:pointer;
  user-select:none;
  position: relative;
  overflow:hidden;
  transition: transform .08s ease, filter .18s ease;
  touch-action: none;
}
.pad:active { transform: translateY(1px) scale(.99); }
.pad .name { font-size: 22px; font-weight: 800; letter-spacing: .2px; }
.pad .notes { font-size: 12px; color: rgba(255,255,255,.75); }
.pad .kbd { position:absolute; top:10px; right:10px; font-size: 12px; color: rgba(255,255,255,.75); }
.pad.active { filter: brightness(1.18); }

.subbar {
  display:flex; gap:10px; flex-wrap:wrap; align-items:center; justify-content:space-between;
  color: var(--muted);
  font-size: 12px;
  padding: 0 16px 16px 16px;
}
.status { display:flex; gap:10px; align-items:center; flex-wrap:wrap; }
.pill {
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.08);
  background: rgba(0,0,0,.25);
  color: rgba(255,255,255,.80);
}

@media (max-width: 980px) {
  .controls { grid-template-columns: 1fr 1fr; }
  .pads { grid-template-columns: repeat(4, 1fr); }
  .pad { height: 110px; }
  .trackRow { grid-template-columns: 1fr; }
  .trackBtns { justify-content:flex-start; }
  .brandbar{ grid-template-columns: 1fr; justify-items:center; }
  .brandlink:first-child, .brandlink:last-child{ justify-content:center; }
}

.viz{
  padding: 8px 12px 0 12px;
  border-bottom: 1px solid rgba(255,255,255,.06);
  display:grid;
  gap:10px;
}
.vizTop{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:12px;
}
.vizTitle{ font-weight:650; color: rgba(255,255,255,.86); }
.vizHint{ color: var(--muted); font-size:12px; }
canvas{
  width: 100%;
  background: rgba(0,0,0,.28);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 12px;
}
.row{ display:flex; align-items:center; justify-content:center; }
.check{
  display:flex; align-items:center; gap:10px;
  font-size: 13px;
  color: rgba(255,255,255,.86);
  user-select:none;
}
.check input{ transform: scale(1.15); }

.vizRow{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:10px;
  padding: 10px 14px 10px 14px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.vizLeft,.vizRight{ display:grid; gap:6px; align-content:start; }
.vizTitle{ font-weight:650; color: rgba(255,255,255,.78); font-size:12px; letter-spacing:.2px; }
.vizRow canvas{
  width:100%;
  background: rgba(0,0,0,.26);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 12px;
}

@media (max-width: 980px){
  .vizRow{ grid-template-columns: 1fr; }
}

/* v3.1 sound test: compact 2-row top */
.controlsBar{ padding: 10px 12px; border-bottom: 1px solid rgba(255,255,255,.06); }
.transportBar{
  display:flex; flex-wrap:wrap; align-items:center; gap:8px;
  background: rgba(8,12,18,.55);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 16px;
  padding: 10px 12px;
}
.mini{ display:grid; gap:4px; }
.miniLabel{ font-size:11px; color: rgba(255,255,255,.62); }
.transportBar input[type="number"], .transportBar select{
  width: 92px; padding: 7px 8px; border-radius: 10px;
}
.transportBar input[type="range"]{ width: 140px; }
.miniCheck{ display:flex; align-items:center; gap:8px; font-size:12px; color: rgba(255,255,255,.82); user-select:none; }
.miniCheck input{ transform: scale(1.1); }

/* tighten tracks */
.tracks{ padding: 8px 12px; }
.trackRow{ padding: 6px 8px; }
.trackName{ font-size: 13px; }
.trackCtl{ gap:6px !important; }
.trackCtl select{ width: 140px; padding: 6px 8px; }
.trackCtl input[type="range"]{ width: 100px; }
.trackBtns .btn{ padding: 6px 8px; border-radius: 10px; }
.pad{ height: 88px; }

/* v3.2 Circle of Fifths panel */
.topHeader{
  display:flex;
  gap:12px;
  align-items:flex-start;
  justify-content:space-between;
  padding: 10px 12px 8px 12px;
}
.headerLeft{ min-width: 340px; }
.learnPanel{
  width: 240px;
  background: rgba(8,12,18,.55);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 16px;
  padding: 10px 10px 8px 10px;
  box-shadow: 0 10px 30px rgba(0,0,0,.35);
}
.learnTop{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:10px;
  margin-bottom:8px;
}
.learnLabel{
  font-size:12px;
  color: rgba(255,255,255,.72);
}
.learnChord{
  font-size:18px;
  font-weight:800;
  letter-spacing:.2px;
}
#circleSvg{ width: 100%; height: auto; display:block; }
.c5-seg{ fill: rgba(255,255,255,.06); stroke: rgba(255,255,255,.10); stroke-width: 1; transition: .12s; }
.c5-seg.active{ fill: rgba(59,130,246,.28); stroke: rgba(59,130,246,.55); }
.c5-min{ fill: rgba(16,185,129,.10); }
.c5-min.active{ fill: rgba(16,185,129,.34); stroke: rgba(16,185,129,.65); }
.c5-seg:hover{ filter: brightness(1.15); }
.c5-text{ fill: rgba(255,255,255,.78); font-size: 12px; font-weight: 700; }
.c5-center{
  fill: rgba(255,255,255,.88);
  font-size: 24px;
  font-weight: 900;
}
.c5-sub{
  fill: rgba(255,255,255,.70);
  font-size: 12px;
  font-weight: 700;
}
@media (max-width: 980px){
  .topHeader{ flex-direction:column; align-items:stretch; }
  .learnPanel{ width: 100%; max-width: 420px; }
}

/* v3.3 layout fix: remove big empty grid space in controls bar */
.controlsBar{ display:block !important; }
.controlsBar .transportBar{ width: 100%; justify-content:flex-start; }

.transportBar{ gap:10px; }

.patternBox{ display:grid; gap:6px; padding: 0 6px; }
.patternBtns{ display:flex; gap:6px; }
.patternBtns .btn{ padding: 6px 10px; border-radius: 10px; }

/* v3.3.1: move Circle of Fifths into vizRow */
.topHeader.noLearn{ justify-content:flex-start; }
.vizRow{ display:flex; gap:12px; align-items:stretch; flex-wrap:wrap; }
.vizLeft, .vizRight{ flex: 1 1 320px; }
.vizLearn{
  flex: 0 0 220px;
  background: rgba(8,12,18,.55);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 16px;
  padding: 10px 10px 8px 10px;
  box-shadow: 0 10px 30px rgba(0,0,0,.35);
  display:grid;
  grid-template-rows: auto auto 1fr;
  gap:6px;
  align-content:start;
}
.vizLearn .vizTitle{ margin:0; }
.vizLearn .learnChord{ font-size:20px; font-weight:900; text-align:center; }
.vizLearn #circleSvg{ width:100%; height:auto; }

.padMode{
  margin: 6px 0 10px 2px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .18em;
  color: rgba(255,255,255,.70);
  text-transform: uppercase;
}
.padMode.drum{ color: rgba(59,130,246,.85); }

/* v3.4 monitors row */
.monitorRow{
  display:flex;
  gap:10px;
  padding: 6px 12px 4px 12px;
  align-items:center;
}
.monitorBox{
  background: rgba(8,12,18,.55);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 14px;
  padding: 8px 10px 8px 10px;
  display:grid;
  gap:6px;
}
.monitorBox.grow{ flex: 1 1 auto; min-width: 280px; }
.monitorBox.c5{ width: 240px; }
.monitorTitle{
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(255,255,255,.65);
}
#meter, #analyzer{ display:block; width: 100%; height: 32px; }
.c5Wrap{ position: relative; }
.c5Wrap .learnChord{
  position:absolute; top: 10px; left: 50%; transform: translateX(-50%);
  font-size: 18px; font-weight: 900; background: rgba(0,0,0,.35);
  padding: 4px 10px; border-radius: 999px;
}
#circleSvg{ width: 100%; height: auto; display:block; margin-top: 14px; }
@media (max-width: 980px){
  .monitorRow{ flex-wrap:wrap; }
  .monitorBox.c5{ width: 100%; max-width: 420px; }
}

/* v3.6.2 UI sanity */
.sanityBanner{
  margin: 10px 12px 0 12px;
  padding: 10px 12px;
  border-radius: 16px;
  background: rgba(16,185,129,.10);
  border: 1px solid rgba(16,185,129,.25);
  color: rgba(255,255,255,.92);
  font-weight: 700;
}
.padModeRow{ display:flex; align-items:baseline; justify-content:space-between; gap:10px; }
.padModeHint{ font-size: 12px; color: rgba(255,255,255,.55); }
.padCounter{ margin: 8px 0 10px 2px; font-size: 12px; color: rgba(255,255,255,.75); }
.padRowTitle{
  margin: 10px 0 8px 2px;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(255,255,255,.65);
}
#padGridMaj, #padGridMin, #padGridDrums{
  display:grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  gap:10px;
}
.pad{ height: 78px; }
.pad.drum{ background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.08); }


/* v4.2 compact track row + stronger pad glow */
.trackRow{
  grid-template-columns: 220px 1fr auto !important;
  gap: 10px;
  align-items: center;
}
.trackCtlInline{
  display:flex !important;
  gap:10px;
  align-items:flex-end;
  flex-wrap:nowrap;
  overflow-x:auto;
  padding-bottom: 2px;
}
.trackCtlInline > div{ min-width: 90px; }
.trackCtlInline select{ width: 120px; }
.trackCtlInline input[type="range"]{ width: 100px; }
.trackBtns{ flex-wrap: nowrap; }

.pad.active {
  filter: brightness(1.38) saturate(1.2);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.45), 0 0 24px rgba(96,165,250,.42);
}

@media (max-width: 1100px){
  .trackRow{ grid-template-columns: 1fr !important; align-items: stretch; }
  .trackCtlInline{ flex-wrap: wrap; overflow: visible; }
}


/* v4.3 widescreen fit + centered circle + ad slots + drum speed + panic */
.app{ width:min(1560px, 99vw); }
.transportBar{ gap:8px 10px; }
#panicBtn.panicBig{ font-size:16px; padding: 10px 16px; min-width: 126px; letter-spacing:.04em; }
#recBtn.on{ background: rgba(239,68,68,.30); border-color: rgba(239,68,68,.6); box-shadow: 0 0 0 2px rgba(239,68,68,.25) inset; }

.vizRow{ display:grid !important; grid-template-columns: 1fr 260px 1fr; align-items:stretch; gap:12px; }
.vizLeft, .vizRight{ display:grid; grid-template-rows:auto auto auto; gap:8px; }
.vizLearn{ justify-self:center; width:260px; }
.miniAd{
  height: clamp(120px, 16vw, 180px);
  border-radius: 10px;
  border: 1px dashed rgba(255,255,255,.22);
  color: rgba(255,255,255,.52);
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  display:grid; place-items:center;
  background: rgba(255,255,255,.03);
}

.pads .pad{ position:relative; }
.drumRateWrap{
  position:absolute;
  left:8px; right:8px; bottom:6px;
  display:flex; gap:6px; align-items:center;
  font-size:9px; color: rgba(255,255,255,.78);
}
.drumRate{ width:100%; accent-color:#22c55e; }
.drumRateWrap span{ width:34px; text-transform:uppercase; letter-spacing:.06em; }

@media (max-width: 1300px){
  .vizRow{ grid-template-columns: 1fr; }
  .vizLearn{ width:100%; max-width:260px; }
}

#micMonitor{ accent-color: #22c55e; }


.trackClips{
  margin-top: 6px;
  display:grid;
  gap:3px;
}
.trackClipLane{
  position:relative;
  height: 16px;
  border-radius: 6px;
  background: rgba(255,255,255,.06);
  overflow:hidden;
}
.trackClip{
  position:absolute;
  top:1px;
  bottom:1px;
  border-radius: 5px;
  background: linear-gradient(135deg, rgba(96,165,250,.78), rgba(59,130,246,.52));
  border:1px solid rgba(255,255,255,.35);
  color:#fff;
  font-size:10px;
  line-height:14px;
  padding:0 4px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

.trackClipStrip{
  grid-column: 1 / -1;
}
.trackClipStrip .trackClips{
  margin-top: 0;
}
.trackName{ align-items:flex-start; }
.clipResize{
  position:absolute;
  right:0;
  top:0;
  bottom:0;
  width:8px;
  cursor: ew-resize;
  background: rgba(255,255,255,.35);
}

.trackRow.armedRow{
  border-color: rgba(96,165,250,.75);
  box-shadow: inset 0 0 0 1px rgba(96,165,250,.35), 0 0 0 1px rgba(96,165,250,.25);
}

.adLink{ display:flex; align-items:center; justify-content:center; padding:6px; overflow:hidden; background: rgba(0,0,0,.28); }
.adLink img{ width:100%; height:100%; object-fit:contain; border-radius:8px; display:block; }


.modeSwitch.beginner{
  background: rgba(59,130,246,.18);
  border-color: rgba(59,130,246,.35);
}
.modeSwitch.advanced{
  background: rgba(168,85,247,.18);
  border-color: rgba(168,85,247,.35);
}
.trackRow.powerChordTrack{
  border-color: rgba(249,115,22,.30);
  background: linear-gradient(135deg, rgba(249,115,22,.14), rgba(236,72,153,.08));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.04), 0 10px 24px rgba(0,0,0,.18);
}
.trackTitleRow{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
}
.trackBadge{
  display:inline-flex;
  align-items:center;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .2px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.08);
  color: rgba(255,255,255,.86);
}
.trackBadge.powerChord{
  background: rgba(249,115,22,.18);
  border-color: rgba(249,115,22,.38);
}
.guitarPanel{
  display:grid;
  gap:8px;
  padding:10px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.08);
  background: rgba(0,0,0,.18);
  min-width: 260px;
}
.guitarPanelTitle{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
  font-size:12px;
  color: rgba(255,255,255,.82);
}
.fxPillRow{ display:flex; gap:6px; flex-wrap:wrap; }
.fxChip{
  border:1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.05);
  color: var(--ink);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 700;
  cursor:pointer;
}
.fxChip.on{
  background: rgba(52,211,153,.16);
  border-color: rgba(52,211,153,.35);
}
.guitarFxGrid{
  display:grid;
  grid-template-columns: repeat(3, minmax(80px,1fr));
  gap:8px;
}
.guitarFxGrid.compact{ grid-template-columns: repeat(2, minmax(110px,1fr)); }
.guitarFxGrid .smallLabel{ color: rgba(255,255,255,.72); }
.guitarPanel .smallLabel strong{ color: rgba(255,255,255,.92); }
@media (max-width: 980px){
  .guitarFxGrid, .guitarFxGrid.compact{ grid-template-columns: 1fr 1fr; }
}